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| -rw-r--r-- | NEWS | 57 | ||||
| -rw-r--r-- | doc/Makefile.am | 4 | ||||
| -rw-r--r-- | doc/xs.txt | 10 | ||||
| -rw-r--r-- | doc/zmq.txt | 121 |
4 files changed, 192 insertions, 0 deletions
@@ -0,0 +1,57 @@ +Crossroads I/O Release Notes +---------------------------- + +This file documents the major changes in between releases of Crossroads +I/O. For a detailed list of changes please refer to Git history, or the +ChangeLog file included with your distribution of Crossroads. + + +Release 1.0.0 (15 March 2012) +----------------------------- + +Initial release. Changes listed here are as compared to libzmq release +3.1. + +New features: + +* The io_threads argument has been removed from xs_init(), and the default + number of I/O threads per context is now 1. +* Context options added - see xs_setctxopt(3): + * The XS_IO_THREADS context option allows the user to specify the size of + the worker thread pool. + * The XS_MAX_SOCKETS context option allows the user to specify the + maximum number of sockets that can exist in parallel within a context. +* Allow setting the source address for TCP connections - see xs_tcp(7). +* ZeroMQ drop-in compatibility mode, enabled by the --enable-libzmq option + to configure. This is a binary compatible emulation of the ZeroMQ 2.1.11 + API, for details see zmq(7). + +Bugfixes: + +* Fix pgm_receiver.cpp: zmq_assert (pending_bytes == 0). (LIBZMQ-205) +* Fix assertion in pgm_sender_t::plug(). (LIBZMQ-303) +* Race condition in zmq_term() fixed. +* Message loss when a SUB socket disconnects fixed. +* Fix data loss for PUB/SUB and unidirectional transports. (LIBZMQ-268) +* Bug in linger implementation fixed. +* Fix IPC transport domain socket stream file not being removed when + connection is closed. +* Removal of pipe from dist_t fixed. +* Only use AI_V4MAPPED if defined, and don't use it on FreeBSD. + +Optimisation: + +* Several optimisations to reduce the memory size of PUB/SUB subscription + map. +* Avoid one extra call to poll() when there are no more data to send. + +Build: + +* MSVC build updated to use MSVC2010 instead of MSVC2008. +* configure prints out a summary of XS configuration. + +Self tests: + +* Many more tests have been added, see the tests/ subdirectory. +* The self tests can now be run from a MSVC build, see the "tests" project. + diff --git a/doc/Makefile.am b/doc/Makefile.am index fcd1b4c..7cfc637 100644 --- a/doc/Makefile.am +++ b/doc/Makefile.am @@ -6,6 +6,10 @@ MAN3 = xs_bind.3 xs_close.3 xs_connect.3 xs_init.3 \ xs_sendmsg.3 xs_recvmsg.3 xs_getmsgopt.3 xs_setctxopt.3 MAN7 = xs.7 xs_tcp.7 xs_pgm.7 xs_inproc.7 xs_ipc.7 +if BUILD_LIBZMQ +MAN7 += zmq.7 +endif + MAN_DOC = $(MAN1) $(MAN3) $(MAN7) MAN_TXT = $(MAN3:%.3=%.txt) @@ -175,11 +175,21 @@ used by C programmers. The intent is that programmers using Crossroads from other languages shall refer to this documentation alongside any documentation provided by the vendor of their language binding. + +ZEROMQ COMPATIBILITY +-------------------- +The Crossroads library provides an optional drop-in 'libzmq' compatibility +library for ZeroMQ applications. If your version of Crossroads was built with +the `--enable-libzmq` option, you can find the compatibility library +documentation in linkxs:zmq[7]. + + AUTHORS ------- The Crossroads documentation was written by Martin Sustrik <sustrik@250bpm.com> and Martin Lucina <martin@lucina.net>. + COPYING ------- Free use of Crossroads library is granted under the terms of the GNU Lesser diff --git a/doc/zmq.txt b/doc/zmq.txt new file mode 100644 index 0000000..f1e1abf --- /dev/null +++ b/doc/zmq.txt @@ -0,0 +1,121 @@ +zmq(7) +====== + + +NAME +---- +zmq - Crossroads I/O ZeroMQ compatibility library + + +SYNOPSIS +-------- +*#include <zmq.h>* + +*cc* ['flags'] 'files' *-lzmq* ['libraries'] + + +DESCRIPTION +----------- +This 'libzmq' compatibility library is provided by the Crossroads I/O project +as a transitional drop-in replacement for existing applications and language +bindings written for the ZeroMQ library. + +The interfaces provided emulate those provided by ZeroMQ release 2.1.11, and +binary compatibility is provided for ABI version 1.0.0. + +Existing applications can use these interfaces as a drop-in replacement for the +ZeroMQ-provided 'libzmq' by installing the Crossroads version of this library +in its place. + +Applications can also be recompiled against this library with no code or build +system changes. + +IMPORTANT: The 'libzmq' compatibility library is an optional component of +the Crossroads project, intended as a way to ease transition of existing +applications and language bindings to the native 'libxs' interfaces, this +feature will not be maintained indefinitely, hence developers are strongly +encouraged to migrate their applications to 'libxs'. + +CONSTANTS +--------- + +All constants defined by the ZeroMQ 2.1.11 version of *<zmq.h>* are also +defined in the Crossroads version. + +INTERFACES +---------- + +Context +~~~~~~~ +[verse] +*void *zmq_init (int 'io_threads');* +*int zmq_term (void '*context');* + + +Sockets +~~~~~~~ +[verse] +*void *zmq_socket (void '*context', int 'type');* +*int zmq_close (void '*socket');* +*int zmq_connect (void '*socket', const char '*endpoint');* +*int zmq_bind (void '*socket', const char '*endpoint');* +*int zmq_setsockopt (void '*socket', int 'option_name', const void '*option_value', size_t 'option_len');* +*int zmq_getsockopt (void '*socket', int 'option_name', void '*option_value', size_t '*option_len');* +*int zmq_poll (zmq_pollitem_t '*items', int 'nitems', long 'timeout');* + + +Messages +~~~~~~~~ +[verse] +*int zmq_msg_init (zmq_msg_t '*msg');* +*int zmq_msg_init_size (zmq_msg_t '*msg', size_t 'size');* +*int zmq_msg_init_data (zmq_msg_t '*msg', void '*data', size_t 'size', zmq_free_fn '*ffn', void '*hint');* +*int zmq_msg_close (zmq_msg_t '*msg');* +*int zmq_msg_copy (zmq_msg_t '*dest', zmq_msg_t '*src');* +*int zmq_msg_move (zmq_msg_t '*dest', zmq_msg_t '*src');* + + +Sending and receiving +~~~~~~~~~~~~~~~~~~~~~ +[verse] +*int zmq_send (void '*socket', zmq_msg_t '*msg', int 'flags');* +*int zmq_recv (void '*socket', zmq_msg_t '*msg', int 'flags');* + + +Devices +~~~~~~~ +[verse] +*int zmq_device (int 'device', const void '*frontend', const void '*backend');* + + +Error handling +~~~~~~~~~~~~~~ +[verse] +*int zmq_errno (void);* +*const char *zmq_strerror (int 'errnum');* + + +Version detection +~~~~~~~~~~~~~~~~~ +[verse] +*void zmq_version (int '*major', int '*minor', int '*patch');* + +NOTE: The version numbers returned by this function are the emulated ZeroMQ API +version, i.e. 2.1.11. + + +COPYING +------- +Free use of Crossroads library is granted under the terms of the GNU Lesser +General Public License (LGPL). For details see the files `COPYING` and +`COPYING.LESSER` included with the Crossroads distribution. + +SEE ALSO +-------- +linkxs:xs[7] + + +AUTHORS +------- +The Crossroads documentation was written by Martin Sustrik <sustrik@250bpm.com> +and Martin Lucina <martin@lucina.net>. |